Ageratina adenophora  (Spreng.) R.M.King & H.Rob.

Crofton Weed
Plants > Angiosperms > Asteraceae > ​Ageratina adenophora
Kingdom: Plantae
Clade: Angiosperms
Class: Dicots
Order: Asterales
Family: Asteraceae (Compositae)
Genus: Ageratina
Species: adenophora
  • Common names: Crofton Weed
  • Thai names: สาบหมา sap ma (Chiang Mai)
  • Chinese names: 破坏草 po huai cao
  • Distribution: Native to Mexico; pantropical and pansubtropical invasive weed in Cambodia, China, India, Laos, Myanmar, Nepal, Indonesia, Philippines, Thailand, Vietnam; S Africa, America, Atlantic islands (Canary Islands), Australia, Pacific islands.
  • Image locations: Chiang Mai (Mae Taeng), Mae Hong Son (Pai)
  • Map info: Provinces are highlighted according to phytogeographical areas as used in the Flora of Thailand project.
  • Additional notes: 
Ageratina adenophora image location map.jpg
Image locations
Images of Ageratina adenophora from Thailand.
Ageratina adenophora from Mae Taeng.jpg
Ageratina adenophora, Mae Taeng, Chiang Mai, March 2018
Ageratina adenophora leaves.jpg
Ageratina adenophora, Mae Taeng, Chiang Mai, March 2018
Ageratina adenophora Pai Mae Hong Son March 2018.jpg
Ageratina adenophora, Pai Mae Hong Son, March 2018
References: 
​The Plant List
Forest Herbarium - BKF
Flora of China